Line data    Source code

       1             : // Copyright 2023 The terCAD team. All rights reserved.
       2             : // Use of this source code is governed by a CC BY-NC-ND 4.0 license that can be found in the LICENSE file.
       3             : 
       4             : import 'package:app_finance/_classes/herald/app_design.dart';
       5             : import 'package:app_finance/_classes/herald/app_locale.dart';
       6             : import 'package:app_finance/_classes/storage/app_data.dart';
       7             : import 'package:app_finance/_classes/structure/currency/exchange.dart';
       8             : import 'package:app_finance/_classes/structure/goal_app_data.dart';
       9             : import 'package:app_finance/_classes/structure/invoice_app_data.dart';
      10             : import 'package:app_finance/_configs/custom_text_theme.dart';
      11             : import 'package:app_finance/_configs/theme_helper.dart';
      12             : import 'package:app_finance/_ext/build_context_ext.dart';
      13             : import 'package:app_finance/charts/gauge_chart.dart';
      14             : import 'package:app_finance/design/wrapper/row_widget.dart';
      15             : import 'package:app_finance/design/wrapper/text_wrapper.dart';
      16             : import 'package:flutter/material.dart';
      17             : import 'package:flutter_currency_picker/flutter_currency_picker.dart';
      18             : 
      19             : class ProfitWidget extends StatelessWidget {
      20             :   final AppData store;
      21             :   final double width;
      22             :   late final List<GoalAppData> goals;
      23             :   late final double maxValue;
      24             :   late final double valInvoice;
      25             :   late final double valBill;
      26             : 
      27           0 :   ProfitWidget({
      28             :     super.key,
      29             :     required this.store,
      30             :     required this.width,
      31             :   }) {
      32           0 :     goals = store.getList(AppDataType.goals).cast();
      33           0 :     maxValue = _getMaxValue(goals);
      34           0 :     valInvoice = _getValue(AppDataType.invoice);
      35           0 :     valBill = _getValue(AppDataType.bills);
      36             :   }
      37             : 
      38           0 :   double _getMaxValue(List<GoalAppData> goals) {
      39           0 :     final exchange = Exchange(store: store);
      40           0 :     final now = DateTime.now();
      41           0 :     return goals.fold(0.0, (prev, e) {
      42           0 :       double left = e.closedAt.difference(now).inDays / 30;
      43           0 :       if (left < 1) {
      44             :         left = 1;
      45             :       }
      46           0 :       double value = (1 - e.progress) * exchange.reform(e.details, e.currency, Exchange.defaultCurrency);
      47           0 :       return prev + value / left;
      48             :     });
      49             :   }
      50             : 
      51           0 :   double _getValue(AppDataType type) {
      52           0 :     final exchange = Exchange(store: store);
      53           0 :     return store
      54           0 :         .getActualList(type)
      55           0 :         .where((v) => type != AppDataType.invoice || (v as InvoiceAppData).accountFrom == null)
      56           0 :         .fold(0.0, (prev, e) => prev + exchange.reform(e.details, e.currency, Exchange.defaultCurrency));
      57             :   }
      58             : 
      59           0 :   @override
      60             :   Widget build(BuildContext context) {
      61           0 :     final indent = ThemeHelper.getIndent();
      62           0 :     final textStyle = context.textTheme.numberSmall;
      63           0 :     final value = valInvoice - valBill;
      64           0 :     return RowWidget(
      65           0 :       alignment: AppDesign.getAlignment<MainAxisAlignment>(),
      66             :       indent: indent,
      67           0 :       maxWidth: width,
      68             :       chunk: const [null, null],
      69           0 :       children: [
      70           0 :         [
      71           0 :           TextWrapper(AppLocale.labels.goalProfitTooltip, style: context.textTheme.bodyLarge),
      72           0 :           TextWrapper(
      73           0 :             AppLocale.labels.goalProfit(maxValue.toCurrency(withPattern: false)),
      74             :             style: textStyle,
      75             :             maxLines: 2,
      76             :           ),
      77           0 :           TextWrapper(
      78           0 :             AppLocale.labels.invoiceSum(valInvoice.toCurrency(withPattern: false)),
      79             :             style: textStyle,
      80             :             maxLines: 2,
      81             :           ),
      82           0 :           TextWrapper(
      83           0 :             AppLocale.labels.billSum(valBill.toCurrency(withPattern: false)),
      84             :             style: textStyle,
      85             :             maxLines: 2,
      86             :           ),
      87           0 :           TextWrapper(
      88           0 :             AppLocale.labels.netProfit(value.toCurrency(withPattern: false)),
      89             :             style: textStyle,
      90             :             maxLines: 2,
      91             :           ),
      92             :           ThemeHelper.hIndent,
      93             :         ],
      94           0 :         [
      95           0 :           GaugeChart(
      96             :             value: value,
      97           0 :             valueMax: maxValue * 2.2,
      98           0 :             width: width > 200 ? 200 : width,
      99             :             height: 100,
     100             :           ),
     101             :         ]
     102             :       ],
     103             :     );
     104             :   }
     105             : }